[UK-CONTEST] Noisy Antenna

[G3RIR]

st1\:*{behavior:url(#default#ieooui) }
I am afraid I might beslightly off topic here so if you think this should have been posted elsewhereplease let me know.

 

I am in need of some ideasplease regarding a new antenna which is very noisy.

 

I have recently replaced myrather bent 80m dipole with a 110 ft top doublet fed with about 50 feet of300ohm "ladder" line coupled to my FT1000mp via a balun and a tuner.The centre of the doublet is on my tower a few feet below the A3s beam.

 

The objective of changingthe antenna was to give me 3.5 MHz 7 MHz, 10 MHz ,

18 MHz and 24 MHz and maybeeven 1.8 MHz (strapping the feeders) to complement my A3s 3 ele tribander on14, 21, 28 MHz.

 

I can get a good match (2:1on 7MHz and 1.5:1 or better on the other bands)into the doublet on all of therequired bands ( I know a dummy load provides a good match).

 

So far I have only tried touse the antenna on 10 MHz but the noise pick-up is horrendous. I was listeningto an EX5 last evening who had a small pile up. On the doublet he was S9 but sowas the noise so he was copyable but not comfortably. I then switched to mybeam but still listening on 10 MHz and the EX5 signal was now down to about S2on the meter but the noise was S0 so the readability was dramatically improved.

 

I am not likely to be ableto hear any real DX with so much noise pickup on the doublet. Does any one haveany ideas?

 

Neil, G3RIR 

 

 

 


		
---------------------------------
 Yahoo! Music Unlimited - Access over 1 million songs. Try it free.